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Longest decisive game ever played?

Posted: Tue Apr 19, 2016 2:45 pm
by LawrenceCooper

Re: Longest decisive game ever played?

Posted: Tue Apr 19, 2016 3:09 pm
by Keith Arkell
I'll just check my scorebooks...

Re: Longest decisive game ever played?

Posted: Tue Apr 19, 2016 3:11 pm
by LawrenceCooper
Keith Arkell wrote:I'll just check my scorebooks...
Some of my games against you seemed that long but I suspect they weren't :lol:

Re: Longest decisive game ever played?

Posted: Tue Apr 19, 2016 3:18 pm
by Keith Arkell
There was a game between Hartston and Basman, possibly in a British Ch playoff, which came down to this same ending. White's mistake in the game in this thread was to push his a pawn up the board. Crucially he loses the option to check on the a file. I think he finally realised that when he decided to jettison it after spending ages getting it to a7.

Re: Longest decisive game ever played?

Posted: Tue Apr 19, 2016 3:41 pm
by Roger de Coverly
Keith Arkell wrote:There was a game between Hartston and Basman, possibly in a British Ch playoff, which came down to this same ending.
The Slater Young Masters at Southend in 1968.

At the end Basman falls into a drawing cheapo, whilst 80 Rh7 is mate in 12 according to engines.

As Keith suggests, the winning idea is to give up the pawn in circumstances where the RB v R ending is won.


Re: Longest decisive game ever played?

Posted: Tue Apr 19, 2016 3:57 pm
by Keith Arkell
Ah thanks Roger - yes that was it!

I think in the featured game the position was actually drawn when Black took the a-pawn. The position is always winning with the a-pawn on the board( barring stalemates and freak set ups) , but the method can be quite complex, whereas if you force the Black King back while resisting pushing the a pawn up the board the win is quite simple. However, Mike Basman's pawn was already up the board so he would have had to be a bit clever to convert (and I'm sure he would have been had he not allowed the stalemate).

Re: Longest decisive game ever played?

Posted: Tue Apr 19, 2016 5:25 pm
by Jonathan Rogers
Mate in 12 from 80 Rh7+ - how do you do that, then?

Sorry, I mean, Keith, how have you done that? :lol:

Re: Longest decisive game ever played?

Posted: Tue Apr 19, 2016 5:42 pm
by Roger de Coverly
This is how Houdini would have finished things off in the Basman - Hartston game.


Re: Longest decisive game ever played?

Posted: Tue Apr 19, 2016 8:00 pm
by Keith Arkell
Jonathan Rogers wrote:Mate in 12 from 80 Rh7+ - how do you do that, then?

Sorry, I mean, Keith, how have you done that? :lol:
Haha, Roger saved me from that one, but I do know the method, and have had very similar finishes to this. Hard to do it in precisely the 12 moves though.

Re: Longest decisive game ever played?

Posted: Wed Apr 20, 2016 7:28 pm
by Stewart Reuben
In the game posted by Lawrence, 203...Rc6+ draws. 230 Rc5 wins. I have no doubt there were other immediate results I didn't notice. Why did Black resign the final position, or did he lose on time?

Re: Longest decisive game ever played?

Posted: Wed Apr 20, 2016 7:50 pm
by JustinHorton
Stewart Reuben wrote:. Why did Black resign the final position
Presumably Re8 - Bc5+ - Ra8 can't be avoided without abanonding the seventh rank and allowing Ra1?